Film-support.



PATENTBD APR. 10, 1906.

H. E. BAER.

FILM SUPPORT.

APPLICATION FILED NOV. 2, 1905liilliillillliillliflllillliilllilllilflliliillliilllliiillfiiililii11mm! WifrceaSea:

lrzvenfor:

i /42 m @WM,

inc. 817,614.

PATENTED APR. 10, 1906. H. E. BAER.

FILM SUPPORT. PPPPPPPPPPPPPPPPP 0v. 2, 1905.

sssssssssssss 2 UNITED STATES PATENT orrion HARRY E. BAER, OF NElV YORK.N. Y., ASSIGNOR OF ONE-HALF TO HENRY M. TOOH AND ONE-HALF TO MAXIMILIANTOOH, BOTH OF NEW YORK, N. Y.

FILM-SUPPORT.

Specification of Letters Patent.

ratented Aplli 10, 1906.

Application filed November 2 1905. Serial No 285.659-

Tr) all whom it may concern:

Be it known that I, HARRY E. BAER, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Film-Supports, ofwhich the following is a specification.

This invention is a supporting device for flexible sensitive films forphotographic use.

The object of the invention is to provide a device which shall be light,durable, and inexpensive and which shall be capable of serving either asa support for a single film during all operations connected withexposure and development or as a support for sections of a continuousfilm during development and the subsequent treatment.

For a full understanding of the invention reference is made to theaccompanying drawings, wherein Figure 1 is a face view of thefilm-support, the position of the film being indicated by dotted lines.Fig. 2 is a perspective view of the support, showing the film attachedthereto. Fig. 3 is a face view of a slightly-modified form of support.Fig. 4 is a perspective view of the form shown in Fig. 2, showing thefilm attached thereto and Fig. 5 is a section on line 5 5 of Fig. 4.

Referring to Figs. 1 and 2, 1 represents a light-frame having upper andlower plane surfaces and formed without projecting parts which wouldinterfere with its use in any position in a plate-holder of ordinaryconstruction. This frame is apertured, as shown at 2, in order to permitexamination of the film by transmitted light. The aperture 2 may be ofany desired size or shape, it being desirable that as much of the filmshould be exposed as is practicable. Small marginal apertures 3 3,(shown as four in number,) located adj a cent to the corners of thecentral aperture 2, serve for the attachment of the film 4. This may beconveniently effected by the use of ordinary paper fasteners 5 5, asillustrated in Fig. 2.

In the form shown in Figs. 3 to 5 the support 1, apertured at 2, isprovided with marginal notches or apertures 6 6 of suitable size toreceive the small clips 7 7. It will be understood that the marginalnotches may be omitted in case the support is to be used in relations inwhich the minute marginal projection due to the thickness of the metalof the clips 7 would be unobjectionable. For instance, the supportwithout the marginal notches is entirely suitable for use inplateholders in certain positions and for all operations connected withdevelopment.

Since the support is substantially free from marginal projections, it isadapted for use in an ordinary plate-holder for supporting a single filmbefore, during, and after expo sure in the camera. The film isthereafter developed, fined, washed, and dried without removing it fromthe support. When films are exposed in rolls which are afterward cutinto sections, the sections are mounted as above for development and thesubsequent opera-- tions, including drying.

The support should be of a material or should have its surface coveredby or impregnated with a material which is unaffected either by thealkaline or acid baths in ordinary use. I prefer to construct thesupport of cardboard or similar material, coated or impregnated with analkali and acid proof substance, preferably the Waterproof paint knownto the trade as R. I. W. Other materials, as paraflin or a solution ofcelluloid or nitrocellulose, may be used. Cardboard treated in thismanner possesses the advantages of lightness, cheapness, and durability,and is, moreover, su'lliciently yielding to avoid any tearing of thefilm during the operation of drying. It will be noted that the fasteningdevices are of such character as to hold the film positively and insureits drying without rolling or buckling.

I claim- 1. Afilm-support comprising an apertured frame adapted forinsertion in a photographic holder, said frame having plane upper andlower surfaces and consisting of a material which is inert towardphotographic baths, and means for detachably securing a film upon one ofsaid surfaces, substantially as described.

2. A film-support comprising a frame adapted for insertion in aphotographic holder, said frame having plane upper and lower surfaces, acentral aperture, a plurality of marginal apertures, and means receivedby said marginal apertures for detachably securing a film upon one ofsaid surfaces, substantially as described.

3. A film-support comprising an apertured frame adapted for insertion ina photographic 5. In combination, a film support comprising a framehaving plane upper and lower surfaces and having a central aperture anda plurality of marginal apertures, a film ar ranged on said support andfastening devices for said film in said marginal apertures,substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

HARRY E. BAER.

' lVitnesses:

RoBT. M. WHITEsELL, S. J. BINSWAUGER.

